Android: Cover is an adaptive launcher for Android that uses the time of day and your location to automatically show you apps and information relevant to where you are and what you're doing. Whether you're at work, home, or in the car, you'll see apps you use in each of those situations.

The gist is pretty simple; Cover pays attention to the apps you use at various points of the day (and lets you tell it when and what apps you prefer to use in what situations), it'll give you a custom lock screen with quick shortcuts to the apps you use most often at the right times. For example, at the office you'll see your email client, your calendar app, Dropbox, and so on. When you're in the car on the way home, Cover will surface your music player, your favorite GPS app, and so on. When you get home, it may bring up Facebook or Twitter, or show you the app you use as a remote control for your TV.

The lock screen can be further customized to include shortcuts to common features, like your camera, for example. When you do slide to unlock, you go back to your default (or preferred) app launcher, so it doesn't change your phone on that level. Finally, each app shortcut on the lock screen lets you kind of "preview" that app, so if you just want to see if you have new messages, you can tap and hold the Gmail icon, start to slide it out of the way, and you'll get a sneak peek at your inbox. Cover hides a lot of power under a really simple and easy to use interface. Hit the link below to give it a try, it's available for Android 4.1+ devices, and it's free.